“He did speak out for the first time since the IPO at TechDisrupt last week in San Francisco, but my feeling is Mark Zuckerberg is in over his hoodie,” he said on “Fast Money.” “Fifty percent of Facebook’s users are logging in from mobile devices. He has yet to come up with anything close to a model that monetizes mobile.”

Bibb also criticized excitement over Zuckerberg’s announcement that the social media giant would enter the search business.

Zuckerberg in Over His Hoodie: Bibb

Two high profile social media companies are trading well below their IPO prices, with Groupon down 75 percent from its public debut. Porter Bibb, Media Tech Capital Partners, explains.

“My advice to Mr. Zuckerberg is: Check with Steve Ballmer at Microsoft and ask him how much traction he’s developed for Bing. It ain’t very easy getting into the search business.”

Bibb pointed out what appears to be a lost opportunity.

“The one thing that he does have that he has not promoted, and that’s really ironic, he is starting a competitor to Google’s AdSense, an advertising syndication service that will send ads through Facebook to websites and destinations way beyond Facebook,” he said. “That could be a very important monetization model for the future of Facebook, but I don’t see anything really visible that is happening in that front. He didn’t even mention it when he was at TechDisrupt.”

Bibb took shots at Groupon, and he weighed in on Chinese social media names: “I really like RenRen,” which Bibb called “the Facebook of China,” and Sina, owner of “Twitter clone” Weibo.

Trader disclosure: On Sept. 19, 2012, the following stocks and commodities mentioned or intended to be mentioned on CNBC’s "Fast Money" were owned by the "Fast Money" traders: Jon Najarian is long call spreads in AAPL; Jon Najarian is long call spreads in JPM; Jon Najarian is long call spreads in GLD; Jon Najarian is long call spreads in FB; Jon Najarian is long call spreads in AMZN; Jon Najarian is long call spreads in GOOG; Jon Najarian is long call spreads in SINA; Jon Najarian is long call spreads in OPEN; Jon Najarian is long call spreads in GLW; Jon Najarian is long call spreads in PXD; Jon Najarian is long GLUU; Jon Najarian is long CME; Jon Najarian is long CBOE; Jon Najarian is long STSI; Steve Weiss is long AAPL CALLS; Steve Weiss is long EUO; Steve Weiss is long M; Steve Weiss is long AIG; Steve Weiss is long BAC; Steve Weiss is long BBT; Steve Weiss is long LCC; Steve Weiss is long QCOM; Steve Weiss is long SODA; Steve Weiss is long BRCM; Steve Weiss is long HK; Steve Weiss is long CLNY; Steve Weiss is long AMTG; Steve Weiss is long MTGE; Steve Weiss is short AAPL PUTS; Steve Weiss is short AKS; Steve Weiss is short RIO; Steve Weiss is short VALE; Brian Kelly is long GLD; Brian Kelly is long SLV; Brian Kelly is long QQQ; Brian Kelly is long EEM; Brian Kelly is long TIP; Brian Kelly is long RNA; Brian Kelly is long WHEAT; Brian Kelly is long CORN; Brian Kelly is long SOYBEANS; Steve Grasso is long AET; Steve Grasso is long ASTM; Steve Grasso is long AUO; Steve Grasso is long BA; Steve Grasso is long F; Steve Grasso is long LNG; Steve Grasso is long MHY; Steve Grasso is long NVIV; Steve Grasso is long PFE; Steve Grasso is long S.

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